Can not paste into terminal
Usually I use ctrl+v for pasting the copied content .but it wont work in terminal .why it is disabled , is there any alternative key board shortcut to do it?
Use shift with the normal keys in the terminal, ie shift-ctrl-v, etc.
I think it's changed because Ctrl-C is meaningful to the terminal as an interrupt, so shift was added for all of them.
I just realized that you when you said "disabled", you may not have meant it simply doesn't work. If you right-click, and "paste" is actually disabled (ie, "grayed out"), then that would probably mean that the clipboard data is not something that the terminal can handle.